Unter den Linden is a boulevard in the central Mitte district of Berlin, Germany. Running from the Spree River to the Brandenburg Gate, it is named after the linden trees that line the grassed pedestrian mall on the median and the two broad carriageways. The avenue links numerous Berlin sights, landmarks and rivers for sightseeing.

The Brandenburg Gate is an 18th-century neoclassical monument in Berlin. One of the best-known landmarks of Germany, it was erected on the site of a former city gate that marked the start of the road from Berlin to Brandenburg an der Havel, the former capital of the Margraviate of Brandenburg. The current structure was built from 1788 to 1791 by orders of King Frederick William II of Prussia, based on designs by the royal architect Carl Gotthard Langhans. The bronze sculpture of the quadriga crowning the gate is a work by the sculptor Johann Gottfried Schadow.